Cooking utensil and automatic exhaust method

Abstract

The invention discloses a cooking utensil and an automatic exhaust method. The cooking utensil comprises a pot body used for cooking food materials; the exhaust module is arranged on the pot body and is used for exhausting air from the pot body; and the detection module is arranged on the pot body and is used for monitoring the pressure in the pot body. In the application, the pressure value of the pot body is monitored through the detection module, and the exhaust module is driven to be opened when the pressure in the pot body is at the peak value and to be closed when the pressure in the pot body is at the valley value, so that the exhaust strategy is adjusted in real time, and the pressure in the pot body is driven to repeatedly reach the peak value for multiple times; and the exhaust module is driven to open exhaust when the pressure in the pot body is at a peak value, so that the food materials are violently turned over for multiple times, mutual collision and fusion among the food materials are enhanced, the effects that soup is richer and porridge is thicker are achieved, the cooking quality is remarkably improved, and the use satisfaction degree and experience of a user are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent furniture, and in particular to a cooking appliance and an automatic exhaust method. Background Art

[0002] Existing cooking appliances, especially electric pressure cookers, perform exhaust operations during the cooking process, during which the ingredients in the pot will roll, which helps to increase the richness of the soup and the viscosity of the porridge. However, most cooking appliances on the market currently rely on pressure switches to control pressure. This switch usually adopts a single-point control mode, that is, once triggered, it will no longer respond to pressure changes in the pot.

[0003] The problem is that the pressure in the pot may fluctuate or change during the exhaust process. Since the pressure switch lacks the ability to adjust the exhaust strategy in real time, it cannot trigger the exhaust in time when the pressure in the pot reaches multiple peaks to achieve multiple violent tumbling of the ingredients. This limitation directly affects the cooking effect, because the tumbling degree of the ingredients is crucial for the concentration of soup and the thickening of porridge.

[0004] Therefore, the existing cooking utensils are unable to perform exhaust operations multiple times when the pressure in the pot is at its highest, resulting in insufficient tumbling of the ingredients, which in turn affects the richness of the soup and the viscosity of the porridge, making the quality of the final cooked ingredients unsatisfactory. Summary of the invention

[0005] In order to overcome at least one of the defects of the above-mentioned prior art, the present application provides a cooking appliance that can adjust the exhaust strategy in real time, drive the pressure inside the pot body to reach a peak value multiple times and trigger the exhaust in time at the peak value.

[0006] A cooking utensil according to an embodiment of the present application includes: a pot body for cooking food; an exhaust module, which is arranged on the pot body and is used to exhaust the pot body; a detection module, which is arranged on the pot body and is used to monitor the pressure inside the pot body; and a controller, wherein the exhaust module and the detection module are both electrically connected to the controller, and is used to drive the exhaust module to open when the pressure inside the pot body is at a peak value, and to drive the exhaust module to close when the pressure inside the pot body is at a valley value.

[0007] In the present cooking utensil, the pressure value of the pot body is monitored by the detection module, and the exhaust module is driven to open when the pressure inside the pot body is at a peak value and to close when the pressure inside the pot body is at a valley value, thereby adjusting the exhaust strategy in real time, driving the pressure inside the pot body to reach a peak value repeatedly, and driving the exhaust module to open the exhaust when the pressure inside the pot body is at a peak value, so as to realize multiple violent tumbling of the ingredients, enhance the mutual collision and fusion between the ingredients, and thereby achieve the effect of making the soup richer and the porridge more viscous, significantly improving the cooking quality, and effectively improving the user's satisfaction and experience.

[0008] According to some embodiments of the present application, the pot body includes an outer shell and an inner pot, the inner pot is arranged in the outer shell, the exhaust module is arranged on the outer shell, and the detection end of the detection module is connected to the inner pot.

[0009] According to some embodiments of the present application, the detection module includes a pressure sensor, the pressure sensor abuts against the bottom of the inner pot, and the pressure sensor is electrically connected to the controller.

[0010] According to some embodiments of the present application, the detection module includes a position sensor, which is disposed at the bottom of the inner pot and is electrically connected to the controller.

[0011] According to some embodiments of the present application, a control panel is further included, wherein the control panel is disposed on the outer surface of the pot body, and the control panel is electrically connected to the controller.

[0012] Based on the same inventive concept, the present application also proposes an automatic exhaust method, which is applied to the cooking appliance as described above, and comprises the following steps:

[0013] S1: Obtain the pressure value inside the pot body collected by the detection module;

[0014] S2: Determine whether the pressure value inside the pot has reached the peak value. If so, execute S3; if not, execute S1;

[0015] S3: driving the exhaust module to open to exhaust the pot body, while continuing to obtain the pressure value inside the pot body collected by the detection module;

[0016] S4: Determine whether the pressure value inside the pot body reaches the valley value. If so, drive the exhaust module to close and execute S1. If not, execute S3.

[0017] According to some embodiments of the present application, S1 is specifically implemented by the following steps: obtaining a pressure value from the detection module at every time interval T, denoted as P(n), where n represents the nth sampling.

[0018] According to some embodiments of the present application, S2 is specifically implemented by the following steps: determine whether the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy: [P(n)-P(n-1)] / T≤K; if so, execute S3; if not, execute S1.

[0019] According to some embodiments of the present application, S3 is specifically implemented by the following steps:

[0020] S31: Drive the exhaust module to open to exhaust the pot body, and at the same time continue to obtain the pressure value inside the pot body collected by the detection module, and accumulate the number of times the exhaust module is opened F(m) by +1; S32: Determine whether F(m) is equal to Q. If so, drive the exhaust module to remain in the open state and end the program. If not, execute S4.

[0021] According to some embodiments of the present application, S4 is specifically implemented by the following steps:

[0022] S41: Determine whether the cooking time is less than the preset time. If so, execute S42. If not, drive the exhaust module to remain open and end the program. S42: Determine whether the pressure value inside the pot body reaches the valley value. If so, drive the exhaust module to close and execute S1. If not, execute S3.

[0023] In summary, the cooking device provided by the present application has the following technical effects:

[0024] The detection module monitors the pressure value of the pot body, and drives the exhaust module to open when the pressure inside the pot body is at a peak value and to close when the pressure inside the pot body is at a valley value, so as to adjust the exhaust strategy in real time, drive the pressure inside the pot body to reach a peak value repeatedly, and drive the exhaust module to open the exhaust when the pressure inside the pot body is at a peak value, so as to realize multiple violent tumbling of the ingredients, enhance the mutual collision and fusion between the ingredients, and thereby achieve the effect of making the soup richer and the porridge more viscous, significantly improve the cooking quality, and effectively improve the user's satisfaction and experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a cooking appliance according to an embodiment of the present application;

[0026] Figure 2 for Figure 1 AA direction cross-sectional view;

[0027] Figure 3 A flow chart of an automatic exhaust method according to an embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the pressure-time in the pot according to an embodiment of the present application.

[0029] The meanings of the reference numerals are as follows:

[0030] 1. Pot body; 11. Outer shell; 12. Inner pot; 2. Exhaust module; 3. Detection module; 4. Control panel. DETAILED DESCRIPTION

[0031] For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] Embodiment 1:

[0035] See also Figure 1 and Figure 2, this embodiment discloses a cooking utensil. The cooking utensil includes a pot body 1, an exhaust module 2, a detection module 3 and a controller. In this embodiment, the pot body 1 is used for cooking food; the exhaust module 2 is arranged on the pot body 1, and is used to exhaust the pot body 1; the detection module 3, the detection module 3 is arranged on the pot body 1, and is used to monitor the pressure inside the pot body 1; the controller, the exhaust module 2 and the detection module 3 are both electrically connected to the controller, and are used to drive the exhaust module 2 to open when the pressure inside the pot body 1 is at a peak value, and to drive the exhaust module 2 to close when the pressure inside the pot body 1 is at a valley value. Optionally, the controller can be different types of devices such as MCU, PLC, DSP, FPGA, etc. In actual applications, it is necessary to comprehensively consider factors such as the overall functional requirements, performance requirements, and cost budget of the system to select the most appropriate controller solution. Preferably, the detection module 3 monitors the pressure value of the pot body 1, and drives the exhaust module 2 to open when the pressure inside the pot body 1 is at a peak value and to close when the pressure inside the pot body 1 is at a valley value, thereby adjusting the exhaust strategy in real time, driving the pressure inside the pot body 1 to reach a peak value repeatedly, and driving the exhaust module 2 to open the exhaust when the pressure inside the pot body 1 is at a peak value, so as to realize multiple violent tumbling of the ingredients, enhance the mutual collision and fusion between the ingredients, and thereby achieve the effect of making the soup richer and the porridge more viscous, significantly improving the cooking quality, and effectively improving the user's satisfaction and experience.

[0036] In this embodiment, the pot body 1 includes an outer shell 11 and an inner pot 12, the inner pot 12 is arranged in the outer shell 11, the exhaust module 2 is arranged on the outer shell 11, the detection end of the detection module 3 is connected to the inner pot 12, and optionally, a receiving cavity is arranged inside the outer shell 11, and the inner pot 12 is accommodated in the receiving cavity; optionally, the opening cover of the receiving cavity is provided with a cover body, so that the receiving cavity can be driven to be in an open state or a closed state by rotating the cover body, and when the receiving cavity is in an open state, the inner pot 12 can be placed in the receiving cavity or taken out of the receiving cavity. Further, the exhaust module 2 includes an exhaust valve, the air inlet end of the exhaust valve is connected to the inner pot 12, and the air outlet end of the exhaust valve is connected to the outside world. When the exhaust module 2 is in a closed state, the air inlet end and the air outlet end of the exhaust valve are mutually cut off, and when the exhaust module 2 is in an open state, the air inlet end and the air outlet end of the exhaust valve are mutually connected, so that the inner pot 12 can be exhausted to the outside world.

[0037] In this embodiment, the detection module 3 includes a pressure sensor, which is in contact with the bottom of the inner pot 12 and is electrically connected to the controller. Specifically, the inner pot 12 can generate a certain displacement under the internal pressure, so that the inner pot 12 can apply pressure to the pressure sensor at the bottom of itself, thereby reflecting the pressure inside the pot body 1 through the pressure sensor; optionally, the pressure sensor can be replaced with a position sensor, which monitors the displacement of the inner pot 12 under the internal pressure in real time, thereby reflecting the pressure inside the pot body 1 in real time.

[0038] In this embodiment, a control panel 4 is also included, and the control panel 4 is arranged on the outer surface of the housing 11, and the control panel 4 is electrically connected to the controller. Optionally, the control panel 4 is provided with a command input module and a display module, and the command input module includes but is not limited to buttons, knobs, touch screens, voice input units, etc., and the display module includes but is not limited to indicator lights, display units, voice playback units, etc.; preferably, after the cooking appliance is powered on and started, the user can input corresponding commands through the command input module on the control panel 4, so that the cooking appliance performs the cooking task according to the preset commands, and the display module can display / reflect / remind the user of the current status, duration, etc. of the cooking appliance.

[0039] Embodiment 2:

[0040] See also Figure 3 and Figure 4 This embodiment discloses an automatic exhaust method, which is applied to the above-mentioned cooking appliance, and includes the following steps:

[0041] S1: Obtaining the pressure value inside the pot body 1 collected by the detection module 3;

[0042] Specifically, the pressure value inside the pot body 1 is collected in real time by the detection module 3 to realize real-time monitoring of the pressure value inside the pot body 1. Optionally, the detection module 3 includes a pressure sensor, and the pressure sensor is arranged at the bottom of the inner pot 12 so that the pressure sensor can monitor the pressure inside the pot body 1 in real time; optionally, the pressure sensor can be replaced by a position sensor, and the displacement of the inner pot 12 driven by the internal pressure is monitored in real time by the position sensor, so as to reflect the pressure inside the pot body 1 in real time.

[0043] S2: Determine whether the pressure value inside the pot body 1 reaches the peak value. If so, execute S3; if not, execute S1;

[0044] Specifically, the pressure value inside the pot body 1 collected in real time by the detection module 3 is called to determine whether the pressure value inside the pot body 1 has reached a peak value. Optionally, the peak value described in this embodiment can be pre-entered by the manufacturer when leaving the factory or input by the user through the control panel 4 after the cooking appliance is powered on, so that the user can make customized settings and further optimize the user experience; preferably, when the pressure value inside the pot body 1 rises to the peak value, S3 is executed to exhaust. If the pressure value inside the pot body 1 has not risen to the peak value, the pressure value inside the pot body 1 continues to be collected in real time by the detection module 3.

[0045] S3: driving the exhaust module 2 to open to exhaust the pot body 1, while continuing to obtain the pressure value inside the pot body 1 collected by the detection module 3;

[0046] Specifically, when the pressure value inside the pot body 1 rises to a peak value, the exhaust module 2 is driven to open the exhaust, and at the same time, the real-time collection of the pressure value inside the pot body 1 is maintained through the detection module 3, so as to realize real-time monitoring of the pressure value inside the pot body 1. Optionally, the exhaust module 2 includes an exhaust valve, which is arranged on the housing 11. By driving the exhaust valve to be turned on or off, the exhaust and pressure maintenance of the cooking utensil are realized. In this embodiment, when the pressure value inside the pot body 1 rises to a peak value, the exhaust valve is driven to switch to the on state, so that the pot body 1 is connected to the outside world, and the steam in the pot body 1 can be discharged to the outside.

[0047] S4: Determine whether the pressure value inside the pot body 1 reaches the valley value. If so, drive the exhaust module 2 to close and execute S1. If not, execute S3.

[0048] Specifically, while exhausting the pot body 1, the detection module 3 maintains real-time collection of the pressure value inside the pot body 1 to determine whether the pressure value inside the pot body 1 reaches a valley value. If the pressure value inside the pot body 1 drops to the valley value, the exhaust module 2 is driven to close, that is, the exhaust valve is driven to switch to a closed state, and the pot body 1 stops exhausting to the outside, so that the cooking appliance is in a pressure-maintaining state, and the S1 is executed, and the pressure value inside the pot body 1 continues to be collected in real time by the detection module 3. If the pressure value inside the pot body 1 does not drop to the valley value, S3 is executed to keep the exhaust valve in a conducting state and continue exhausting. Optionally, the valley value in this embodiment is pre-entered at the factory or input by the user through the control panel 4 after the cooking appliance is powered on, so that the user can make customized settings to further optimize the user's experience;

[0049] In this embodiment, when cooking starts, the pressure value inside the pot body 1 is collected in real time by the detection module 3 to realize real-time monitoring of the pressure value inside the pot body 1. When the pressure value inside the pot body 1 rises to a peak value, the exhaust module 2 is driven to open the exhaust. At the same time, the real-time collection of the pressure value inside the pot body 1 is maintained through the detection module 3. If the pressure value inside the pot body 1 drops to a valley value, the exhaust module 2 is driven to close, that is, the exhaust valve is driven to switch to a closed state, and the pot body 1 stops exhausting to the outside, so that the cooking appliance is in a pressure-maintaining state. If the pressure value inside the pot body 1 rises to a peak value again, the exhaust module 2 is driven to open the exhaust again. If the pressure value inside the pot body 1 drops to a valley value again, the exhaust module 2 is closed again. This cycle is repeated, thereby adjusting the exhaust strategy in real time, driving the pressure inside the pot body 1 to reach a peak value repeatedly, and driving the exhaust module 2 to open the exhaust when the pressure inside the pot body 1 is at a peak, so as to realize multiple violent tumbling of the ingredients, enhance the mutual collision and fusion between the ingredients, and thus achieve the effect of making the soup richer and the porridge more viscous, significantly improving the cooking quality, and effectively improving the user's satisfaction and experience.

[0050] Optionally, the peak and valley values ​​can be set according to different ingredients, cooking tasks and other factors; optionally, the peak and valley values ​​can be pre-set by the manufacturer before leaving the factory, optionally, the peak and valley values ​​can be input by the user through the control panel 4; optionally, the peak value is 70Kpa, optionally, the valley value is 50Kpa.

[0051] Embodiment three:

[0052] This embodiment also discloses an automatic exhaust method, which is applied to cooking utensils. The main differences between the automatic exhaust method described in this embodiment and the automatic exhaust method described above are:

[0053] S1: Obtaining the pressure value inside the pot body 1 collected by the detection module 3;

[0054] Specifically, the pressure value inside the pot body 1 is collected in real time by the detection module 3, so as to realize real-time monitoring of the pressure value inside the pot body 1. Optionally, the S1 is specifically realized by the following steps:

[0055] At each time interval T, a pressure value is obtained from the detection module 3, which is denoted as P(n), where n represents the nth sampling.

[0056] Specifically, the detection module 3 monitors the pressure value inside the pot body 1 in real time, and the processor obtains a pressure value from the detection module 3 at every time interval T, which is recorded as P(n), where n represents the nth sampling.

[0057] Preferably, when the cooking appliance is powered on, the processor immediately obtains a pressure value from the detection module 3, recorded as P(0). After T time, the processor obtains a pressure value from the detection module 3, recorded as P(1). After 2T time, the processor obtains a pressure value from the detection module 3, recorded as P(2). By analogy, after nT time, the processor obtains a pressure value from the detection module 3, recorded as P(n). In this way, by periodically obtaining pressure value data, the amount of data storage is reduced, and the amount of data processing of the system is optimized. The value of T can be set according to factors such as different ingredients and cooking tasks; optionally, the value of T can be pre-set by the manufacturer before leaving the factory, and optionally, the value of T can be input by the user through the control panel 4, wherein T is greater than 0. Furthermore, the selection of T depends on the rate of pressure change. If the pressure changes quickly, T should be set to a smaller value; if the pressure changes slowly, T can be set to a larger value.

[0058] S2: Determine whether the pressure value inside the pot body 1 reaches the peak value. If so, execute S3; if not, execute S1;

[0059] Specifically, the pressure value inside the pot body 1 collected in real time by the detection module 3 is called to determine whether the pressure value inside the pot body 1 reaches a peak value. Preferably, in a closed cooking utensil, the pressure change generated by heating the liquid is usually a curve change. Optionally, the S2 is specifically implemented by the following steps:

[0060] Determine whether the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy: [P(n)-P(n-1)] / T≤K. If so, execute S3; if not, execute S1.

[0061] Specifically, the pressure change P(n)-P(n-1) between adjacent time points is calculated, and then the corresponding slope is approximately calculated by the difference method [P(n)-P(n-1)] / T to obtain the average change rate of the pressure within time T. Therefore, when the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy [P(n)-P(n-1)] / T≤K, it means that the pressure value inside the pot body 1 rises to the peak value, and S3 is executed to exhaust; optionally, the value of K can be input by the user through the control panel 4, where the value of K can be set according to different ingredients and cooking tasks; optionally, the value of K can be pre-set by the manufacturer before leaving the factory; optionally, the value of K can be input by the user through the control panel 4, where K is greater than or equal to 0.

[0062] Embodiment 4:

[0063] This embodiment also discloses an automatic exhaust method, which is applied to cooking utensils. The main differences between the automatic exhaust method described in this embodiment and the automatic exhaust method described above are:

[0064] The S3 is specifically implemented by the following steps:

[0065] S31: driving the exhaust module 2 to open the exhaust, while continuing to obtain the pressure value inside the pot body 1 collected by the detection module 3, and accumulating the number of times the exhaust module 2 is opened F(m) by +1;

[0066] Specifically, when the pressure value inside the pot body 1 rises to a peak value, the exhaust module 2 is driven to open the exhaust. At the same time, the real-time collection of the pressure value inside the pot body 1 is maintained through the detection module 3, so as to realize real-time monitoring of the pressure value inside the pot body 1, and the number of times the exhaust module 2 is opened F(m) is accumulated +1, so as to realize the accumulation of the number of times the exhaust module 2 is opened, thereby realizing the accumulation of the number of times of exhaust and pressure maintenance.

[0067] S32: Determine whether F(m) is equal to Q. If so, drive the exhaust module 2 to remain in the open state and end the program. If not, execute S4.

[0068] Specifically, by judging whether F(m) is equal to Q, it is identified whether the current number of repeated exhaust and pressure maintenance meets the cooking requirements of the ingredients, thereby ensuring that the ingredients in the pot body 1 can roll more violently during multiple peak exhausts, enhancing the mutual collision and fusion between the ingredients, thereby achieving the effect of making the soup more rich and the porridge more viscous, thereby achieving a significant improvement in cooking quality and effectively improving the user's satisfaction and experience. Preferably, when F(m) is equal to Q, that is, the number of repeated exhaust and pressure maintenance meets the cooking requirements of the ingredients, the exhaust module 2 is driven to remain in the open state and the program is terminated. If F(m) is not equal to Q, that is, the number of repeated exhaust and pressure maintenance does not meet the cooking requirements of the ingredients, S4 is executed to continue to judge whether the pressure value inside the pot body 1 reaches the valley value, wherein the value of Q can be set according to factors such as different ingredients and cooking tasks; optionally, the value of Q can be pre-set by the manufacturer before leaving the factory, and optionally, the value of Q can be input by the user through the control panel 4, wherein Q is greater than 0.

[0069] Embodiment five:

[0070] This embodiment also discloses an automatic exhaust method, which is applied to cooking utensils. The main differences between the automatic exhaust method described in this embodiment and the automatic exhaust method described above are:

[0071] The S4 is specifically implemented by the following steps:

[0072] S41: Determine whether the cooking time is less than the preset time. If so, execute S42. If not, drive the exhaust module 2 to remain in the open state and end the program.

[0073] Specifically, by judging whether the cooking time is less than the preset time, it is identified whether the food has reached the optimal cooking time, thereby ensuring the cooking quality. Preferably, when it is judged that the cooking time is less than the preset time, that is, the food has not reached the optimal cooking time, S42 is executed to continue to judge whether the pressure value inside the pot body 1 reaches the valley value. If it is judged that the cooking time is not less than the preset time, that is, the food has reached the optimal cooking time, the exhaust module 2 is driven to remain in the open state, and the program ends. Optionally, the preset time is set by the user through the control panel 4 or is entered into a readable storage medium by the manufacturer when leaving the factory.

[0074] S42: Determine whether the pressure value inside the pot body 1 reaches the valley value. If so, drive the exhaust module 2 to close and execute S1. If not, execute S3.

[0075] Specifically, while the pot body 1 is being vented, the detection module 3 is used to maintain real-time collection of the pressure value inside the pot body 1 to determine whether the pressure value inside the pot body 1 has reached a valley value. If the pressure value inside the pot body 1 drops to the valley value, the exhaust module 2 is driven to close, that is, the exhaust valve is driven to switch to a closed state, and the pot body 1 stops exhausting air to the outside, so that the cooking appliance is in a pressure-maintaining state, and returns to S1, and continues to collect the pressure value inside the pot body 1 in real time through the detection module 3. If the pressure value inside the pot body 1 has not dropped to the valley value, S3 is executed to keep the exhaust valve in an on state and continue to vent.

[0076] Embodiment six:

[0077] The present application also discloses an automatic exhaust method, which is applied to the cooking appliance as described above, and comprises the following steps:

[0078] S1: Obtaining the pressure value inside the pot body 1 collected by the detection module 3;

[0079] Specifically, the pressure value inside the pot body 1 is collected in real time by the detection module 3, so as to realize real-time monitoring of the pressure value inside the pot body 1. Optionally, the S1 is specifically realized by the following steps:

[0080] A pressure value is obtained from the pressure sensor at every time interval T, which is recorded as P(n), where n represents the nth sampling.

[0081] Specifically, the detection module 3 monitors the pressure value inside the pot body 1 in real time, and the processor obtains a pressure value from the detection module 3 at every time interval T, which is recorded as P(n), where n represents the nth sampling.

[0082] Preferably, when the cooking appliance is powered on, the processor immediately obtains a pressure value from the detection module 3, recorded as P(0). After T time, the processor obtains a pressure value from the detection module 3, recorded as P(1). After 2T time, the processor obtains a pressure value from the detection module 3, recorded as P(2). And so on. After nT time, the processor obtains a pressure value from the detection module 3, recorded as P(n). In this way, the storage amount of data is reduced and the data processing amount of the system is optimized by periodically obtaining the data of the pressure value. Among them, the value of T can be entered into a readable storage medium by the manufacturer at the time of leaving the factory, or set by the user according to the type of food and cooking tasks, etc. Furthermore, the selection of T depends on the rate of pressure change. If the pressure changes quickly, T should be set to a smaller value; if the pressure changes slowly, T can be set to a larger value.

[0083] S2: Determine whether the pressure value inside the pot body 1 reaches the peak value. If so, execute S3; if not, execute S1;

[0084] Specifically, the pressure value inside the pot body 1 collected in real time by the detection module 3 is called to determine whether the pressure value inside the pot body 1 reaches a peak value. Preferably, in a closed cooking utensil, the pressure change generated by heating the liquid is usually a curve change. Optionally, the S2 is specifically implemented by the following steps:

[0085] Determine whether the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy: [P(n)-P(n-1)] / T≤K. If so, execute S3; if not, execute S1.

[0086] Specifically, the pressure change P(n)-P(n-1) between adjacent time points is calculated, and then the corresponding slope is approximately calculated using the difference method [P(n)-P(n-1)] / T to obtain the average rate of change of pressure within time T. Therefore, when the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy [P(n)-P(n-1)] / T≤K, it means that the pressure value inside the pot body 1 rises to the peak value, and S3 is executed to exhaust.

[0087] S3: driving the exhaust module 2 to open to exhaust the pot body 1, while continuing to obtain the pressure value inside the pot body 1 collected by the detection module 3;

[0088] Specifically, when the pressure value inside the pot body 1 rises to a peak value, the exhaust module 2 is driven to open the exhaust, and at the same time, the real-time collection of the pressure value inside the pot body 1 is maintained through the detection module 3, so as to realize the real-time monitoring of the pressure value inside the pot body 1. Preferably, the S3 is specifically implemented by the following steps:

[0089] S31: driving the exhaust module 2 to open the exhaust, while continuing to obtain the pressure value inside the pot body 1 collected by the detection module 3, and accumulating the number of times the exhaust module 2 is opened F(m) by +1;

[0090] Specifically, when the pressure value inside the pot body 1 rises to a peak value, the exhaust module 2 is driven to open the exhaust. At the same time, the real-time collection of the pressure value inside the pot body 1 is maintained through the detection module 3, so as to realize real-time monitoring of the pressure value inside the pot body 1, and the number of times the exhaust module 2 is opened F(m) is accumulated +1, so as to realize the accumulation of the number of times the exhaust module 2 is opened, thereby realizing the accumulation of the number of times of exhaust and pressure maintenance.

[0091] S32: Determine whether F(m) is equal to Q. If so, drive the exhaust module 2 to remain in the open state and end the program. If not, execute S4.

[0092] Specifically, by judging whether F(m) is equal to Q, it is identified whether the current number of repeated exhaust and pressure maintenance meets the cooking requirements of the ingredients, thereby ensuring that the ingredients in the pot body 1 can roll more violently during multiple peak exhausts, enhancing the mutual collision and fusion between the ingredients, thereby achieving the effect of making the soup richer and the porridge more viscous, thereby achieving a significant improvement in cooking quality and effectively improving user satisfaction and experience. Preferably, when F(m) is equal to Q, that is, the number of repeated exhaust and pressure maintenance meets the cooking requirements of the ingredients, the exhaust module 2 is driven to remain in the open state and the program is terminated. If F(m) is not equal to Q, that is, the number of repeated exhaust and pressure maintenance does not meet the cooking requirements of the ingredients, S4 is executed to continue to judge whether the pressure value inside the pot body 1 has reached the valley value.

[0093] S4: Determine whether the pressure value inside the pot body 1 reaches the valley value. If so, drive the exhaust module 2 to close and execute S1. If not, execute S3.

[0094] Specifically, while exhausting the pot body 1, the detection module 3 maintains real-time collection of the pressure value inside the pot body 1 to determine whether the pressure value inside the pot body 1 has reached a valley value. If the pressure value inside the pot body 1 drops to the valley value, the exhaust module 2 is driven to close, that is, the exhaust valve is driven to switch to a closed state, and the pot body 1 stops exhausting to the outside, so that the cooking utensil is in a pressure-maintaining state, and returns to S1, and continues to collect the pressure value inside the pot body 1 in real time through the detection module 3. If the pressure value inside the pot body 1 has not dropped to the valley value, S3 is executed to keep the exhaust valve in a conducting state and continue exhausting. Preferably, S4 is specifically implemented by the following steps:

[0095] S41: Determine whether the cooking time is less than the preset time. If so, execute S42. If not, drive the exhaust module 2 to remain in the open state and end the program.

[0096] Specifically, by judging whether the cooking time is less than the preset time, it is identified whether the food has reached the optimal cooking time, thereby ensuring the cooking quality. Preferably, when it is judged that the cooking time is less than the preset time, that is, the food has not reached the optimal cooking time, S42 is executed to continue to judge whether the pressure value inside the pot body 1 reaches the valley value. If it is judged that the cooking time is not less than the preset time, that is, the food has reached the optimal cooking time, the exhaust module 2 is driven to remain in the open state, and the program ends. Optionally, the preset time is set by the user through the control panel 4 or is entered into a readable storage medium by the manufacturer when leaving the factory.

[0097] S42: Determine whether the pressure value inside the pot body 1 reaches the valley value. If so, drive the exhaust module 2 to close and execute S1. If not, execute S3.

[0098] Specifically, while the pot body 1 is being vented, the detection module 3 is used to maintain real-time collection of the pressure value inside the pot body 1 to determine whether the pressure value inside the pot body 1 has reached a valley value. If the pressure value inside the pot body 1 drops to the valley value, the exhaust module 2 is driven to close, that is, the exhaust valve is driven to switch to a closed state, and the pot body 1 stops exhausting air to the outside, so that the cooking appliance is in a pressure-maintaining state, and S1 is executed. The pressure value inside the pot body 1 continues to be collected in real time by the detection module 3. If the pressure value inside the pot body 1 has not dropped to the valley value, S3 is executed to keep the exhaust valve in an on state and continue to vent.

[0099] The technical means disclosed in the present application are not limited to the technical means disclosed in the above-mentioned implementation methods, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also regarded as the protection scope of this application.

Claims

1. A cooking utensil, characterized in that: include: The pot body is used for cooking food; An exhaust module, the exhaust module is arranged on the pot body and is used to exhaust the pot body; A detection module, which is disposed on the pot body and is used to monitor the pressure inside the pot body; The controller, the exhaust module and the detection module are both electrically connected to the controller, and are used to drive the exhaust module to open when the pressure inside the pot body is at a peak value, and to drive the exhaust module to close when the pressure inside the pot body is at a valley value.

2. The cooking device according to claim 1, characterized in that: The pot body comprises an outer shell and an inner pot, the inner pot is arranged in the outer shell, the exhaust module is arranged on the outer shell, and the detection end of the detection module is connected to the inner pot.

3. The cooking device according to claim 2, characterized in that: The detection module includes a pressure sensor, the pressure sensor is in contact with the bottom of the inner pot, and the pressure sensor is electrically connected to the controller.

4. The cooking device according to claim 2, characterized in that: The detection module comprises a position sensor, which is arranged at the bottom of the inner pot and is electrically connected to the controller.

5. The cooking device according to claim 1, characterized in that: It also includes a control panel, which is arranged on the outer surface of the pot body and is electrically connected to the controller.

6. An automatic exhaust method, applied to the cooking appliance according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Obtain the pressure value inside the pot body collected by the detection module; S2: Determine whether the pressure value inside the pot has reached the peak value. If so, execute S3; if not, execute S1; S3: driving the exhaust module to open the exhaust, while continuing to obtain the pressure value inside the pot body collected by the detection module; S4: Determine whether the pressure value inside the pot body reaches the valley value. If so, drive the exhaust module to close and execute S1. If not, execute S3.

7. The automatic exhaust method according to claim 6, characterized in that: The S1 is specifically implemented by the following steps: At every time interval T, a pressure value is obtained from the detection module, which is denoted as P(n), where n represents the nth sampling.

8. The automatic exhaust method according to claim 6, characterized in that: The S2 is specifically implemented by the following steps: Determine whether the pressure value P(n) at the current moment and the pressure value P(n-1) at the previous moment satisfy: [P(n)-P(n-1)] / T≤K. If so, execute S3; if not, execute S1.

9. The automatic exhaust method according to claim 6, characterized in that: The S3 is specifically implemented by the following steps: S31: driving the exhaust module to open the exhaust, while continuing to obtain the pressure value inside the pot body collected by the detection module, and accumulating the number of times the exhaust module is opened F(m) by +1; S32: Determine whether F(m) is equal to Q. If so, drive the exhaust module to remain in the open state and end the program. If not, execute S4.

10. The automatic exhaust method according to claim 6, characterized in that: The S4 is specifically implemented by the following steps: S41: determining whether the cooking time is less than a preset time, if so, executing S42, if not, driving the exhaust module to remain in an open state, and ending the program; S42: Determine whether the pressure value inside the pot body reaches the valley value. If so, drive the exhaust module to close and execute S1. If not, execute S3.

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